Improvement in window-sash locks



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WILLIAM E. ARNOLD, OF ROCHESTER, NEV YORK, ASSIGNOR TO H. G.

ARNOLD AND J. H. CASTLE.

IMPROVEMENT IN WINDOW-SASH LOCKS.

Specification forming part of Letters Patent N0. QJSS, dated September29, 1863.

.To all whom it may concern..-

Be it known that I, WILLIAM E. ARNOLD, of Rochester, in the county ofMonroe and State of New York, have invented new and useful Improvementsin a Fastener or Lock for Fastening Weighted or Balanced Sashes, oi'which the following is a full and exact description, reference being hadto the accompanyin g drawings, making part of the specication, and tothe letters of reference marked thereon, and of said drawings- Figure lis a front view of the fastener, which consists of a box, letter A,upright B, tumbler C, and slide D D. Fig. 2 shows the upper side of thebox, and openings for the upright and tumbler or catch, and guide Gr.The dotted lines A A-show the slide moved to the right hand as far as itwill go. The dotted lines B B show the slide moved to the left hand.Fig. 3 shows the under or inside of the box. Fig. 4 is an edge view ofthe same, showing the openings for the slide D D, and the points on theunder side of the box are intended to aid in securing the box when it isscrewed to the top of the lower sash. Fig. 5 is a face or front view ofthe upright B. Fig. 6 shows the opposite or back side of the same. Fig.7 is an edge view of the same. Fig. S showsone sideot' the tumbler C orcatch. Fig. 9 shows the opposite side ot the same, with the guide Gr andstop S, which holds the tumbler or catch in its proper place, thusforming with the box and tumbler a perfect joint and stop for the usehere intended in the most simple and easy manner, and at the same timeadmitting ot' the greatest economy in the construction of the tumbler,its adaptation, &c. Fig. l0 is an edge view of the same. Fig. ll showsthe upper side of the slide D D, being hollowed about two-thirds itslength, in order to let the tumbler work freely .over it. Fig. 12 is anedge view ot' the slide D D, and is the same as shown in Fig. 1, lettersD D. Fig. 13 is an edge view of the fastener or lock, excepting theslide D D, which should be inserted in the openings of the box tocomplete the fastener. The position of the upright should be, however,the same as shown in Fig. l, letter B.

The lock is intended for Weighted or balanced sash. The upright B isusually applied to the face of the upper sash, and the box holding thetumbler and slide is screwed to the top of the lower sash. When thecatch and upright are as shown in Fig'. 13, and all parts of the lockare as shown in Fig. 1, both sashes are fully closed. Here we have whatis called a self-fastener-tliat is,'by pressing downward on the innerend of the tumbler or handle part of it, (see letter O in Fig. 13,) theinner end or catch part is raised from the upright, so that the uppersash may be lowered or the lower sash raised, as desired. Returning, thecatch will always fall back against the upright, and hold the sash atany point as far as there are notches for it to work into. Thisoperation is very desirable for all sashes which work freely, as thewindow will always be fastened when the sash is down; but when thesashes do not work freely, which is often the case, and especially indamp weather, both hands may be needed in raising or lowering them,which may be done by moving the slide to the left hand, bringing thesolid part of it under the tumbler at point N in Fig. 13, raising thecatch, and holding it there as long as desired, so that the sashes maybe moved up or down as freely as they would if there were no catch ortumbler in the fastener. lt will be seen by moving the slide to theright. hand the tumbler will again fall into the hollow in the slide andagainst the upright, and fasten the sash securely. Thus we have the twoways ot' fastening and unfastening the sash, both good and reliable,whether the lock is applied to the side or center of the sash, each onehaving its particular advantages over the other, some ot' which are morereadily seen than described; but when the lock is applied to the side ofthe sash, another and very great advantage arises from the use of theslide by cutting a notch in the partingstop to let the end of the slideinto and hold the lower sash securely, while the upper one forth anddescribed, and for he purposes herein named.

2. The guide G and stop S, or their equiva lents, arranged with thetumbler G, the Whole combined With the box A, substantially as and forthe purposes set forth.

WM. E. ARNOLD.

Witnesses:

O. R. REMINGTON, H. N. ARNOLD.

